准噶尔盆地腹部车-莫古隆起中段头屯河组存在证据及其研究意义
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摘要
准噶尔盆地腹部中晚侏罗世发育的车-莫古隆起形成诸多类型的地层圈闭,是油气运移的长期有利指向区,研究区目的层段(J/K不整合面附近)是否存在头屯河组对本区勘探很有意义。基于单井岩性电性组合特征、古生物、粘土矿物、地层接触关系等方面的资料,发现车-莫古隆起中段白垩系底界面下普遍发育的红层段是头屯河组的特征标志层,具有头屯河组特有的Classopollis-Quadraecu lina-Piceaepollenites孢粉组合,粘土矿物组合上具有富含伊利石、不含或含少量高岭石的特征而区别于较富含伊利石、高岭石的下部层段,连井地层对比及地震剖面标定也表明车-莫古隆起中段存在较薄层头屯河组分布的平台区。这一新认识对本区圈闭评价和成藏条件评价等有指导作用。
Various types of stratigraphic traps formed during the formation of Che-Mo palaeo-uplift in Middle-Late Jurassic are target areas of prolonged oil-gas migration-accumulation,and hence the existence or nonexistence of Toutunhe Formation in the target strata near the unconformity between Jurassic and Cretaceous is of great importance to the exploration work of the study area.Based on charatersitics of the litho-electrical assemblage,paleontology,clay minerals,stratigraphic contact relationships in the strata beneath J/K unconformity,some evidence can be found as follows:a typical red layer is developed commonly,the strata have typical Classopollis-Quadraeculina-Piceaepollenites spore assemblage and typical clay mineral assemblage(rich illite,insufficient kaolinite),and a thin Toutunhe Formation platform can also be seen on the seismic horizon flattening section and stratigraphic correlation section.The existence of Toutunhe Formation will be helpful to the oil-gas exploration in the study area in such aspects as trap estimation,reserve calculation,and oil-gas accumulation condition evaluation.
Various types of stratigraphic traps formed during the formation of Che-Mo palaeo-uplift in Middle-Late Jurassic are target areas of prolonged oil-gas migration-accumulation,and hence the existence or nonexistence of Toutunhe Formation in the target strata near the unconformity between Jurassic and Cretaceous is of great importance to the exploration work of the study area.Based on charatersitics of the litho-electrical assemblage,paleontology,clay minerals,stratigraphic contact relationships in the strata beneath J/K unconformity,some evidence can be found as follows:a typical red layer is developed commonly,the strata have typical Classopollis-Quadraeculina-Piceaepollenites spore assemblage and typical clay mineral assemblage(rich illite,insufficient kaolinite),and a thin Toutunhe Formation platform can also be seen on the seismic horizon flattening section and stratigraphic correlation section.The existence of Toutunhe Formation will be helpful to the oil-gas exploration in the study area in such aspects as trap estimation,reserve calculation,and oil-gas accumulation condition evaluation.
引文
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陈中红,吴孔友,查明,朱筱敏.2006.准噶尔盆地陆梁地区断裂—不整合面输导体系与油气运聚[J].地球学报,27(1):63～68.
韩立国,张枝焕,李伟.2006.准噶尔盆地中部Ⅰ区块现今油气运移方向研究[J].地球学报,27(4):335～340.
李平平,邹华耀,郝芳.2006.准噶尔盆地腹部侏罗系顶部风化壳的发育机制及其油气成藏效应[J].沉积学报,24(6):889～896.
凌云,祝嗣全,黄国荣,刘得光,常秋生.2005.石南地区头屯河组油藏关系探讨[J].天然气勘探与开发,28(4):12～15.
佟殿君,任建业,任亚平.2006.准噶尔盆地车-莫古隆起的演化及其对油气藏的控制[J].油气地质与采收率,13(3):39～42.
吴孔友,查明,王绪龙,曲江秀,陈新.2005.准噶尔盆地构造演化与动力学背景再认识[J].地球学报,26(3):217～222.
吴晓智,张年富,石昕.2006.准噶尔盆地车-莫古隆起构造特征与成藏模式[J].中国石油勘探,1:65～68.
武恒志,孟闲龙,杨江峰.2006.准噶尔盆地腹部车-莫古隆起区隐蔽油气藏形成条件与勘探技术[J].石油与天然气地质,27(6):779～803.
谢寅符,李洪奇.2005.准噶尔盆地钙质夹层成因及层序地层学意义[J].石油学报,26(5):24～27.
谢寅符,李洪奇,孙中春.2006.准噶尔盆地石南地区侏罗系—白垩系间风化壳的发现及其地层学意义[J].地质论评,52(1):137～144.
徐常胜,王斌,杨梦云,陈永军,吴海生.2005.准噶尔盆地腹部白垩系底界划分[J].新疆石油地质,26(3):278～279.
徐同台,王行信,张有瑜,赵杏媛,包于进.2003.中国含油气盆地粘土矿物[M].北京:石油工业出版社,422～456.
赵宏亮.2006.准噶尔盆地车-莫古隆起演化及其控藏规律[J].新疆石油地质,27(2):160～162.
钟筱春,赵传本,杨时中,沈后.2003.中国北方侏罗系.Ⅱ,古环境与油气[M].北京:石油工业出版社,1～270.
朱允辉,孟闲龙.2005.准噶尔盆地车-莫古隆起的形成演化及其对腹部油气成藏的影响[J].中国西部油气地质,1(1):55～57.
CHANG Botao.2006.Relationship between unconformity system andheterogeneous migration of petroleum in continental basin[J].Ac-ta Petrolei Sinica,27(5):19～23(in Chinese with English ab-stract).
CHEN Zhonghong,WU Kongyou,ZHA Ming,ZHU Xiaomin.2006.Relationship between Passage Systems of Faults-Unconformities andHydrocarbon Migration:A Case Study of the Luliang Uplift in theJunggar Basin[J].Acta Geoscientica Sinica,27(1):63～68(inChinese with English abstract).
HAN Liguo,ZHANG Zhihuan,LI Wei.2006.An analysis of the presentoil migration direction of Block I in Central Junggar Basin[J].Ac-ta Geoscientica Sinica,27(4):335～340(in Chinese with Eng-lish abstract).
LI Pingping,ZOUHuayao,HAO fang.2006.Formation mechanism andeffect on petroleumaccumulation of the weathering crust,top of Ju-rassic,in the hinterland of Junggar Basin[J].Acta Sedimentologi-ca Sinica,24(6):889～896(in Chinese with English abstract).
LING Yun,ZHUSiquan,HUANG Guorong,LIUDeguang,CHANG Qi-usheng.2005.Relationship among reservoirs of Toutunhe forma-tion,Shinan Area[J].Natural Ctas Exploraiton&DevElopment,28(4):12～15(in Chinese with English abstract).
TONG Dianjun,RENJianye,RENYaping.2006.Evolution of the Che-Mo Palaeo-Uplift in Junggar Basin and control on the oil and gasreservoir[J].Petroleum Geology and Recovery Efficiency,13(3):39～42(in Chinese with English abstract).
WUHengzhi,MENG Xianlong,YANG Jiangfeng.2006.Formation con-ditions and prospecting technologies for subtle reservoirs in theChe-Mo palaeohigh of central Junggar Basin[J].Oil&Gas Geolo-gy,27(6):779～803(in Chinese with English abstract).
WUKongyou,ZHA Ming,WANG Xulong,QU Jiangxiu,CHEN Xin.2005.Further researches on the tectonic evolution and dynamicsetting of the Junggar Basin[J].Acta Geoscientica Sinica,26(3):217～222(in Chinese with English abstract).
WU Xiaozhi,ZHANG Nianfu,SHI Xin.2006.Characteristics and reser-voiring mode of Chepaizi-Mosuowan Paleo-Uplift in Junggar Basin[J].China PetroleumExploration:65～68(in Chinese with Eng-lish abstract).
XIE Yinfu,LI Hongqi,SUN Zhongchun.2006.Discovery of a weathe-ring crust between Jurassic and Cretaceous and its stratigraphic sig-nificance in the Shinan Area of the Junggar Basin[J].GeologicalReview,52(1):137～144(in Chinese with English abstract).
XIE Yinfu,LI Hongqi.2005.Origin of calcareous interbeds and its sig-nificance of sequence stratigraphy in Junggar Basin[J].Acta Pe-trolei Sinica,26(5):24～27(in Chinese with English abstract).
XUChangsheng,WANG Bin,YANG Mengyun,CHEN Yongjun,WUHaisheng.2005.Classification of Cretaceous bottom boundary inhinterland of Junggar Basin[J].Xinjiang Petroleum Geology,26(3):278～279(in Chinese with English abstract).
XU Tongtai,WANG Xingxin,ZHANG Youyu,ZHAO Xinyuan,BAOYujin.2003.Clay minerals in petroliferous basin in China[M].Beijing:Petroleum Industry Press,422～456(in Chinese withEnglish abstract).
ZHAO Hongliang.2006.The evolution and reservoir-controlled pattern inChepaizi-Mosuowan Paleo-Uplift in Junggar Basin[J].XinjiangPetroleum Geology,27(2):160～162(in Chinese with Englishabstract).
ZHONG Xiaochun,ZHAO Chuanben,YANG Shizhong,SHEN Hou.2003.Jurassic system in the north of China.Ⅱ,Paleosedimenta-ry and petroleum[M].Beijing:Petroleum Industry Press,1～270(in Chinese with English abstract).
ZHUYunhui,MENG Xianlong.2005.Formation and evolution of theChemo Ancient Uplift and its influence on reservoir formation inthe central area of Junggar Basin[J].West China Petroleum Geo-sciences,1(1):55～57(in Chinese with English abstract).
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